CVE-2026-58053Public exploitNetwork attack vector

Host escape via unsanitized workflow container options

Published Jun 28, 2026 · Updated Jun 28, 2026

Container escape in Gitea Runner 0.262.0 and earlier allows remote authenticated users to execute commands as root on the runner host. RunContext.options() appends workflow-controlled container.options to Docker settings, while mergeContainerConfigs() clears only Privileged and preserves host namespace, capability, and security-profile flags. Workflow execution access and a Docker-backed runner are required; the resulting container enters host namespaces and runs host commands as root.

CVSS severity9.4
Critical
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Container escape in Gitea Runner 0.262.0 and earlier allows remote authenticated users to execute commands as root on the runner host. RunContext.options() appends workflow-controlled container.options to Docker settings, while mergeContainerConfigs() clears only Privileged and preserves host namespace, capability, and security-profile flags. Workflow execution access and a Docker-backed runner are required; the resulting container enters host namespaces and runs host commands as root.

The record

CVE
CVE-2026-58053
Published
Jun 28, 2026
Updated
Jun 28, 2026
Vendor
Gitea
Product
Gitea Runner
Classifications
CWE-269, T1611
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=0.262.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Gitea · Gitea Runnerversion=0 <=0.262.0

Published CVSS scores

9.9VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
9.4VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1611Escape to Host

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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